21657729

素因数分解:

$3^1\times {\mathrm{139}}^1\times {\mathrm{167}}^1\times {\mathrm{311}}^1$

素因数の和:620

約数の個数: 16

約数和(自身を含む): 29352960

約数和(自身を除く): 7695231

約数列:

[1, 3, 139, 167, 311, 417, 501, 933, 23213, 43229, 51937, 69639, 129687, 155811, 7219243, 21657729]

約数ペア:

[(1, 21657729), (3, 7219243), (139, 155811), (167, 129687), (311, 69639), (417, 51937), (501, 43229), (933, 23213)]